| 摘要 |
A three part ostomy coupling has a first part (20) having a flange (27), a central chute (22) and an array of spaced arcuate walls (25); a second part (10) having a peripheral seal (12) for engaging and surrounding the outer wall of the chute (22) and an outwardly projecting rim (14) capable of a snap fit with the spaced arcuate walls (25); and a third part (30) which is rotatable about the arcuate walls (25) in order to effect a positive lock between the rim (14) and the arcuate walls. The third part or locking ring (30) has on its upper surface ridge-like projections (34) which engage the arcuate walls (25) on rotation of the ring (31). These effect a secure locking of the coupling elements (10) and (20). |
